NBX Manual

NBX Usage
NBX Manual—424774-001
4-3
Troubleshooting
•
For NCB^LSN, NCB^LSN^EXT, NCB^NUM, and NCB^NUM^EXT, values are
assigned differently from MULTILAN. To be compatible with standard NetBIOS
rules, NBX will never assign the values 0 or 255 to the NCB^LSN field. Other than
skipping these values, the NCB^LSN^EXT is used as the high-order byte of the
NCB^LSN field and the sessions are assigned the lowest available LSN. Likewise,
NCB^NUM^EXT is used as a high-order byte to NCB^NUM, and the lowest
available name index is used.
Troubleshooting
If a problem occurs that requires assistance from Compaq support personnel, an NBX
trace file is usually required. Here are some guidelines for tracing NBX:
•
Try to isolate the problem as much as possible. If possible, limit all NBX activity to
a single window, session, etc.
•
If possible, start the trace immediately before reproducing the problem, and stop the
trace immediately afterwards.
•
Normally, give the binary trace file to Compaq support personnel. It can be
formatted locally with the NBXGTRED program.
•
Traces from PAM on a G-series system or TLAM on a D-series system, and
NonStop IPX are generally much less useful. Use these traces only when
specifically requested by Compaq support personnel.
•
LAN hardware traces are sometimes useful, but they frequently contain a lot of
unrelated network traffic, and they do not contain the detailed information in an
NBX trace.
•
Check the NonStop IPX configuration, and be sure that the NonStop IPX process
name is used in the ADD DOMAIN command.
•
Verify that the remote workstations use the same IPX frame type as NonStop IPX. If
the frame types are different, a NetWare File Server or a third-party product can
sometimes function as a NetBIOS router. Frequently, routers are explicitly
configured to suppress NetBIOS traffic.
•
For PCT and TTE, verify that the configuration specifies MULTILAN, and the
proper host name and window names are used.
Using NBXGTRED
NBXGTRED formats a trace file created by the TRACE command. You can run
NBXGTRED after a trace file is closed, or even while it is still open.
IN trace-file
specifies the trace file named on the TRACE ON command.
RUN NBXGTRED / IN trace-file , OUT out-file / [ 80COL ]